# this file is part of refractiveindex.info database
# refractiveindex.info database is in the public domain
# copyright and related rights waived via CC0 1.0

REFERENCES: |
    <a href="https://refractiveindex.info/download/data/2017/ohara_2017-11-30.agf">OHARA Zemax catalog 2017-11-30</a> (obtained from <a href="http://www.ohara-inc.co.jp/en/product/optical/list/">http://www.ohara-inc.co.jp</a>)<br>See also <a href="https://refractiveindex.info/download/data/2017/ohara_2017-11-30.pdf">OHARA glass data sheets</a>
COMMENTS: |
    
DATA:
  - type: formula 3
    wavelength_range: 0.3 2.4
    coefficients: 3.2534707 -0.014523589 2 0.046505136 -2 0.0036159629 -4 -0.00024194408 -6 3.5879606e-05 -8
  - type: tabulated k
    data: |
        0.380 8.5076E-06
        0.390 3.5363E-06
        0.400 1.6795E-06
        0.420 5.8273E-07
        0.440 3.0721E-07
        0.460 2.1483E-07
        0.480 1.5195E-07
        0.500 1.1709E-07
        0.550 5.7271E-08
        0.600 4.7987E-08
        0.650 5.7213E-08
        0.700 4.4743E-08
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -2.38e-06 1.45e-08 -4.39e-13 6.92e-07 1.32e-09 0.344
    nd: 1.846659
    Vd: 23.780116
    glass_code: 847238
    glass_status: special
    density:
      - value: 3580
    thermal_expansion:
      - temperature_range: 243 343
        value: 8.9e-06
      - temperature_range: 293 573
        value: 1.02e-05
    dPgF: 0.0181
    resistance:
        climatic: 1.0
        acid: 1.0
        phosphate: 1.0